TY - JOUR
T1 - Torque and twist against superlubricity
AU - Filippov, Alexander E.
AU - Dienwiebel, Martin
AU - Frenken, Joost W.M.
AU - Klafter, Joseph
AU - Urbakh, Michael
PY - 2008/1/29
Y1 - 2008/1/29
N2 - Superlubricity between incommensurate surfaces provides a desired low-friction state essential for the function of small-scale machines. Here we demonstrate experimentally and theoretically that superlubricity in contacts lubricated by lamellar solids might be eliminated due to torque-induced reorientation coupled to lateral motion. We find that the possibility of reorientation always leads to stabilization of a high frictional state which corresponds to a commensurate configuration.
AB - Superlubricity between incommensurate surfaces provides a desired low-friction state essential for the function of small-scale machines. Here we demonstrate experimentally and theoretically that superlubricity in contacts lubricated by lamellar solids might be eliminated due to torque-induced reorientation coupled to lateral motion. We find that the possibility of reorientation always leads to stabilization of a high frictional state which corresponds to a commensurate configuration.
UR - http://www.scopus.com/inward/record.url?scp=38749115015&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.100.046102
DO - 10.1103/PhysRevLett.100.046102
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AN - SCOPUS:38749115015
SN - 0031-9007
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
M1 - 046102
ER -